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Before performing an SSL data transfer, Both sides of the communication must first shake hands with SSL, The encryption algorithm has been negotiated to exchange the encryption key, Perform identity authentication, Normally, This SSl handshake process only needs to be performed once, But there is a Regegotiation option in the SSL protocol, It allows renegotiation of the secret key to create a new key, The attacker repeatedly carries out the key renegotiation process, and the key renegotiation process requires the server to invest 15 times more CPU computing resources than the client. In addition, even if the server does not support Renegotiation, the attacker can still create similar attack effects by opening a new SSL connection separately.超级网剧余罪由新丽传媒联合爱奇艺共同制作，张睿执导，改编自常书欣同名IP小说《余罪》，由张一山、孙佳雨、吴优势等领衔主演。该剧讲述警校学生“余罪“从一场特殊的选拔开始，进入了生活和社会矛盾之中，且在成为一个卧底后遭遇各种惊险事件的故事。There are three main events: regiestrationName, topLevelType, and Native那刘邦为何还要在这里布置防线呢？尹旭微笑着询问。老丁彻底慌了，既然你已经赚了40多两，那你看着来吧，我立刻给你找人去。Advanced Mathematics (Tongji 7th Edition): Yes, what I said is the reference book for postgraduate entrance examination. It is really good, with moderate difficulty, and with the corresponding video or video of some basic courses abroad, the high number understands the limit, derivative, differential and integral are almost the same.　　—Sarah Moore Grimké, activist for women’s suffrage, 1837